Re: TI-H: pressure sensor
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Re: TI-H: pressure sensor
Use an I2C A/D converter!
> ____
> / \ pin 1 is VCC 5 volts
> | o | pin 2 is ground
> \____/ pin 3 is Vout (betwean 0-5 volts)
> /||||\ pins 4-6 are not used
> | |||| |
> 1 2345 6 _____
| ||_____| I2C |____________SCL
|_|______| A/D |____/\/\
| |______| |________|___SD I'm not sure about the
| | |_____| Interface side of the I2C chip
+ -
I'm not exactly sure if this is right, but I'm sure it will work in it's
most basic form. There may be things like a reference voltage or
something like that. If anyone knows anything about an I2C A/D
converter, fix this schematic.
Richard Piotter
richfiles1@hotmail.com
>
>I was wondering if we could make a pressure sensor for the 85(or any
>other calc for that matter.
>
>I have a motorola mpx4100a presure sensor.
>it looks like this.
>
> ____
> / \ pin 1 is VCC 5 volts
> | o | pin 2 is ground
> \____/ pin 3 is Vout (betwean 0-5 volts)
> /||||\ pins 4-6 are not used
> | |||| |
> 1 2345 6
>
>is it possible to have a assembly program sense the voltage comeing
>into the link port? i dont know assembly so i would need some one to
>write the driver..but the pressure is related to Vout by an equation
>which you can find at along with the data sheet here:
>http://mot2.indirect.com/cgi-bin/get?/books/dl200/pdf/mpx4100rev*.pdf
>
>if anyone thinks this is a possible project or would like to help.
>please let me know.
>the hardware is easy i just need someone to help with drivers.
>
>
>
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